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Long-Term Debt (Schedule of operating lease liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Long-Term Debt
Current portion of liability component	$ 579	$ 577
Operating lease liabilities, net of current portion	1,489	2,021
Total operating lease liabilities	$ 2,068	$ 2,598
Weighted average remaining lease term for operating leases (in years)	3 years 6 months 14 days	4 years 5 months 5 days
Weighted average discount rate for operating leases	6.10%	6.10%

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Present value of lessee's discounted obligation for lease payments from operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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